North Korea says recent comments by US Vice-President Mike Pence were "stupid" and "ignorant" and has again warned it was willing to pull out of a planned summit between leader Kim Jong-un and President Donald Trump.

Key points:

Mr Pence said "the Libya model" was a possible outcome for North Korea

North Korea warns of a "nuclear showdown" if the US doesn't change its behaviour

It also says it will not "beg the US for dialogue"

Choe Son-hui, North Korea's Vice Minister of Foreign Affairs, was quoted in the North's state-run news agency slamming comments Mr Pence made in an interview with Fox News, which compared North Korea to Libya.